Answer in brief
CVE-2026-76471 records a Critical severity (CVSS 9.8) vulnerability in Cisco NX-OS Software NX-API Remote Code Execution Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco NX-OS Software (generic), Cisco/Cisco Unified Computing System (Managed) (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco NX-OS Software (generic), Cisco/Cisco Unified Computing System (Managed) (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco NX-OS Softwaregeneric | 9.2(3) || 9.2(2v) || 9.2(1) || 9.2(2t) || 9.2(3y) || 9.3(2) || 9.2(4) || 9.3(1) || 9.3(1z) || 9.2(2) || 9.3(3) || 9.3(4) || 9.3(5) || 9.3(6) || 9.3(5w) || 9.3(7) || 9.3(7k) || 9.3(7a) || 9.3(8) || 9.3(9) || 9.3(10) || 10.3(1) || 10.3(2) || 9.3(11) || 10.3(3) || 9.3(12) || 10.4(1) || 10.3(99w) || 10.3(3w) || 10.3(99x) || 10.3(3o) || 10.3(4) || 10.3(3p) || 10.3(4a) || 10.4(2) || 10.3(3q) || 9.3(13) || 10.3(5) || 10.4(3) || 10.3(3x) || 10.3(4g) || 10.5(1) || 10.3(3r) || 10.3(6) || 9.3(14) || 10.4(4) || 10.3(4h) || 10.5(2) || 10.3(7) || 10.4(5) || 10.5(3) || 9.3(15) || 10.4(4g) || 10.5(4) || 10.6(1) || 10.5(3t) || 10.3(8) || 10.4(6) || 10.5(3s) || 10.5(3e) || 10.5(3o) || 9.3(16) || 10.6(1s) || 10.6(2) || 10.5(3p) || 10.3(9) || 10.6(2s) || 10.6(3) || 10.4(7) || 10.5(5) || 9.3(17) || 10.6(2n) || 10.6(3s) | Not reported |
| Cisco/Cisco Unified Computing System (Managed)generic | 4.0(1a) || 4.1(1d) || 4.0(4f) || 4.0(4a) || 4.0(4e) || 4.0(4c) || 4.0(4h) || 4.1(1c) || 4.0(2a) || 4.1(1e) || 4.1(2a) || 4.0(2b) || 4.0(1b) || 4.0(4d) || 4.0(2e) || 4.1(1a) || 4.0(4g) || 4.0(1c) || 4.0(1d) || 4.0(4b) || 4.0(4i) || 4.0(2d) || 4.1(1b) || 4.1(2b) || 4.0(4k) || 4.1(3a) || 4.1(3b) || 4.1(2c) || 4.0(4l) || 4.1(4a) || 4.1(3c) || 4.1(3d) || 4.2(1c) || 4.2(1d) || 4.0(4m) || 4.1(3e) || 4.2(1f) || 4.1(3f) || 4.2(1i) || 4.1(3h) || 4.2(1k) || 4.2(1l) || 4.0(4n) || 4.2(1m) || 4.1(3i) || 4.2(2a) || 4.2(1n) || 4.1(3j) || 4.2(2c) || 4.2(2d) || 4.2(3b) || 4.1(3k) || 4.0(4o) || 4.2(2e) || 4.2(3d) || 4.2(3e) || 4.2(3g) || 4.1(3l) || 4.3(2b) || 4.2(3h) || 4.2(3i) || 4.3(2c) || 4.1(3m) || 4.3(2e) || 4.3(3a) || 4.2(3j) || 4.3(3c) || 4.3(4a) || 4.2(3k) || 4.3(4b) || 4.3(4c) || 4.2(3l) || 4.3(4d) || 4.3(2f) || 4.2(3m) || 4.3(5a) || 4.3(4e) || 4.1(3n) || 4.3(4f) || 4.2(3n) || 4.3(5c) || 4.2(3o) || 4.3(5d) || 4.3(6a) || 4.3(6b) || 4.3(5e) || 4.3(6c) || 4.2(3p) || 4.3(6d) || 4.3(6e) || 4.3(6f) || 4.2(3r) || 4.3(6g) || 4.3(6h) || 4.2(3s) || 4.3(6i) | Not reported |
Published upstream
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 7, 2026
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a reload of the device and a DoS condition.
Quoted source text, attributed separately from HOL analysis.